Inventor

HOLZKNECHT BERNHARD

DE3 patents

Patents

3 patents

US4882430ANov 21, 1989

Recovery of caprolactam from caprolactam distillation low boilers or high boilers or mixtures thereof

BASF AG15 citations71

US4795571AJan 3, 1989

Purification of frozen crystal layers

BASF AG12 citations71

US4369327AJan 18, 1983

Preparation of phthalic anhydride

BASF AG3 citations57